Heat the broiler with a rack around 6 inches away from the heat source.
Cut the onions and peppers (and garlic if using) into strips and arrange on tray.
Coat vegetables with olive oil and season liberally with salt and pepper. Toss to mix and then spread in an even layer.
Score the sausages on both sides and arrange evenly among the veggies.
Broil until the sausage is cooked through, and the peppers and onions are nicely charred **(around 15 minutes)**.
Rotate the pan and ingredients as needed to ensure everything cooks evenly.
Serve immediately with spicy mustard
notes
If the ingredients are charring too quickly, cover the pan with aluminum foil and/or lower the temperature
I prefer to eat the sausage and peppers in a sandwich roll, but another option is to cube potatoes and roast them along with the sausage and veggies.
Other than cutting the veggies, this is a super hands off recipe, and easily amenable to buying a family pack of sausages and making a weeks worth of dinners in one sitting.
Based On
[NYT Sausage and Peppers Recipe](https://cooking.nytimes.com/recipes/1020436-sheet-pan-sausage-with-peppers-and-tomatoes)